| Age | Commit message (Collapse) | Author | Files | Lines |
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Decoding and storing c2c_stats for each hist entry. Changing related
function to work with c2c_* objects.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ Add '.nr_entries = 0' to the c2c_stats initialization to fix the build on older distros ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Store cacheline related entries in nested hist object for each cacheline
data. Nested entries are sorted by 'offset' within related cacheline.
We will allow specific sort keys to be configured for nested cacheline
data entries in following patches.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
[ he__get_hists() should return NULL when c2c_hists__init() fails ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding basic sample processing specific hist_entry allocation callbacks
(via hists__add_entry_ops).
Overloading 'struct hist_entry' object with new 'struct c2c_hist_entry'.
The new hist entry object will carry specific stats and nested hists
objects.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Fallback to standard dimensions in case we don't find the dimension
within c2c ones.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Allow to reuse 'struct sort_entry' objects within c2c dimension support.
In case the 'struct sort_entry' object meets the need of c2c report we
will use it directly in following patches.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding bare bones of dimension support for c2c report.
Main interface functions are:
c2c_hists__init
c2c_hists__reinit
which re/initialize 'struct c2c_hists' object with sort/display entries
string, in a similar way that setup_sorting function does.
We overload the dimension to provide multi line header support for
sort/display entries.
Also we overload base 'struct perf_hpp_fmt' object with 'struct c2c_fmt'
to define c2c specific functions to deal with multi line headers and
spans.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding c2c report subcommand. It reads the perf.data and displays shared
data analysis.
This patch adds report basic wirings. It gets fully implemented in
following patches.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding c2c record subcommand. It setups options related to HITM
cacheline analysis and calls standard perf record command.
$ sudo perf c2c record -v -- -a
calling: record -W -d --sample-cpu -e cpu/mem-loads,ldlat=30/P -e cpu/mem-stores/P -a
...
It produces perf.data, which is to be reported by perf c2c report, that
comes in following patches.
Details are described in the man page, which is added in one of the
following patches.
Committer notes:
Testing it:
# perf c2c record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 5.050 MB perf.data (412 samples) ]
# ls -la perf.data
-rw-------. 1 root root 5301752 Oct 4 13:32 perf.data
# perf evlist
cpu/mem-loads,ldlat=30/P
cpu/mem-stores/P
# perf evlist -v
cpu/mem-loads,ldlat=30/P: type: 4, size: 112, config: 0x1cd, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, mmap: 1, comm: 1, freq: 1, task: 1, precise_ip: 3, mmap_data: 1, sample_id_all: 1, mmap2: 1, comm_exec: 1, { bp_addr, config1 }: 0x1f
cpu/mem-stores/P: type: 4, size: 112, config: 0x82d0, { sample_period, sample_freq }: 4000, sample_type: IP|TID|TIME|ADDR|ID|CPU|PERIOD|DATA_SRC|WEIGHT, read_format: ID, disabled: 1, inherit: 1, freq: 1, precise_ip: 3, sample_id_all: 1
#
# perf report --stdio
<SNIP>
# Total Lost Samples: 14
# Samples: 216 of event 'cpu/mem-loads,ldlat=30/P'
# Event count (approx.): 15207
# Overhead Symbol Shared Object
# ........ ..................................... ............................
10.32% [k] update_blocked_averages [kernel.vmlinux]
3.43% [.] 0x00000000001a2122 qemu-system-x86_64 (deleted)
2.52% [k] enqueue_entity [kernel.vmlinux]
1.88% [.] g_main_context_query libglib-2.0.so.0.4800.2
1.86% [k] __schedule [kernel.vmlinux]
<SNIP>
# Samples: 196 of event 'cpu/mem-stores/P'
# Event count (approx.): 14771346
# Overhead Symbol Shared Object
# ........ ................................... ............................
13.91% [k] intel_idle [kernel.vmlinux]
3.02% [.] 0x00000000022f06ea chrome
2.94% [.] 0x00000000001a1b4c qemu-system-x86_64 (deleted)
2.94% [.] 0x000000000019d8e4 qemu-system-x86_64 (deleted)
2.38% [.] 0x00000000001a1c52 qemu-system-x86_64 (deleted)
<SNIP>
Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Adding c2c command base wirings. Its implementation is going to be added
gradually in following patches.
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Introducing c2c_add_stats function helper to cumulate c2c_stats.
Original-patch-by: Dick Fowles <[email protected]>
Original-patch-by: Don Zickus <[email protected]>
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Introducing c2c_decode_stats function, which decodes
data_src data into new struct c2c_stats.
Signed-off-by: Jiri Olsa <[email protected]>
Original-patch-by: Dick Fowles <[email protected]>
Original-patch-by: Don Zickus <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Joe Mario <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add support for Power8 PVR 004b0201 for tuleta and 0x004d0200 for
firestone.
Signed-off-by: Madhavan Srinivasan <[email protected]>
CC: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add mapfile.csv and power8.json files for the Power8 processor.
Changelog[v3]
- [Namhyung Kim] Remove text from PublicDescription fields if it is
identical to or prefix of BriefDescription.
Changelog[v2]
- [Andi Kleen] Replace the vendor-family-model,version fields with
cpuid,version fields (to simplify mapfile)
- Reuse the JSON files when possible (i.e multiple cpuids can refer
to the same JSON file) - so drop the 004d0100.json and use
power8.json in multiple entries in mapfile.
- Add few more Power8 PVRs to mapfile
Changelog[v21]
- Group events into per topic per cpu model.
Signed-off-by: Sukadev Bhattiprolu <[email protected]>
CC: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Committer note:
Testing it on a ThinkPad t450s:
[acme@jouet linux]$ perf list
<SNIP>
Cache:
l1d.replacement
[L1D data line replacements]
l1d_pend_miss.fb_full
[Cycles a demand request was blocked due to Fill Buffers inavailability]
l1d_pend_miss.pending
[L1D miss oustandings duration in cycles]
l1d_pend_miss.pending_cycles
[Cycles with L1D load Misses outstanding]
<SNIP>
Signed-off-by: Andi Kleen <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add a Intel event file for perf.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
[ Lowercased the directory and file names ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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When building on Ubuntu 16.04, I get the following error:
Makefile:49: *** the openjdk development package appears to me missing, install and try again. Stop.
The problem is that update-java-alternatives has multiple spaces between
fields, and cut treats each space as a new delimiter:
java-1.8.0-openjdk-ppc64el 1081 /usr/lib/jvm/java-1.8.0-openjdk-ppc64el
Fix this by using awk, which handles this fine.
Signed-off-by: Anton Blanchard <[email protected]>
Reviewed-by: Stephane Eranian <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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This patch helps with Sukadev's vendor event tree where such events can happen.
>From Andi Kleen:
Any event including a .c/.o/.bpf currently triggers BPF compilation or loading
and then an error. This can happen for some Intel vendor events, which cannot
be used.
This patch fixes this problem by forbidding BPF file patch containing '{', '}'
and ',', make sure flex consumes the leading '{', instead of matching it using
a BPF file path.
Tested result:
$ perf stat -e '{unc_p_clockticks,unc_p_power_state_occupancy.cores_c0}' -a -I 1000
invalid or unsupported event: '{unc_p_clockticks,unc_p_power_state_occupancy.cores_c0}'
Run 'perf list' for a list of valid events
(as expected, interperted as event)
$ perf stat -e 'aaa.c' -a -I 1000
ERROR: problems with path aaa.c: No such file or directory
(as expected, interpreted as BPF source)
$ perf stat -e 'aaa.ccc' -a -I 1000
invalid or unsupported event: 'aaa.ccc'
(as expected, interpreted as event)
$ perf stat -e '{aaa.c}' -a -I 1000
ERROR: problems with path aaa.c: No such file or directory
event syntax error: '{aaa.c}'
<SKIP>
(as expected, interpreted as BPF source)
$ perf stat -e '{cycles,aaa.c}' -a -I 1000
ERROR: problems with path aaa.c: No such file or directory
event syntax error: '{cycles,aaa.c}'
(as expected, interpreted as BPF source)
Signed-off-by: Wang Nan <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Reported-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Cc: Zefan Li <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Sukadev reported segfault on releasing perf env's numa data. It's due
to nr_numa_nodes being set no matter if the numa data gets parsed
properly. The perf_env__exit crash the on releasing non existed data.
Setting nr_numa_nodes only when data are parsed out properly.
Signed-off-by: Jiri Olsa <[email protected]>
Reported-by: Sukadev Bhattiprolu <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Wang Nan <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Markus reported that 'perf top --hierarchy' cannot scroll down after
refresh. This was because the number of entries are not updated when
hierarchy is enabled.
Unlike normal report view, hierarchy mode needs to keep its own entry
count since it can have non-leaf entries which can expand/collapse.
Reported-and-Tested-by: Markus Trippelsdorf <[email protected]>
Signed-off-by: Namhyung Kim <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Fixes: f5b763feebe9 ("perf hists browser: Count number of hierarchy entries")
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add two tips that describe --list option of config sub-command and
explain how to choose particular config file location.
Signed-off-by: Nambong Ha <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Taeung Song <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Signed-off-by: Donghyun Kim <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Taeung Song <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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There is a existing tip as below.
If you have debuginfo enabled, try: perf report -s sym,srcline
However this tip only describe a condition to use --sort sym,scrline
options. So there is lack of explanation in the tip. I think that it
would be better to add a tip that exactly explains the feature of --sort
srcline.
Signed-off-by: Seonyoung Kim <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Taeung Song <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Intel fixed counters are special cases in the JSON conversion process
because their decoding differs between perf and the event files. Add
some missing entries in the conversion table.
Signed-off-by: Andi Kleen <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Sukadev Bhattiprolu <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The MTC packet provides a 8-bit slice of CTC which is related to TSC by
the TMA packet, however the TMA packet only provides the lower 16 bits
of CTC. If mtc_shift > 8 then some of the MTC bits are not in the CTC
provided by the TMA packet. Fix-up the last_mtc calculated from the TMA
packet by copying the missing bits from the current MTC assuming the
least difference between the two, and that the current MTC comes after
last_mtc.
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: [email protected] # v4.3+
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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In cycle-accurate mode, timestamps can be calculated from CYC packets.
The decoder also estimates timestamps based on the number of
instructions since the last timestamp. For that to work in
cycle-accurate mode, the instruction count needs to be reset to zero
when a timestamp is calculated from a CYC packet, but that wasn't
happening, so fix it.
Signed-off-by: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: [email protected] # v4.3+
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Perf uretprobe probes on GEP(Global Entry Point) which fails to record
all function calls via LEP(Local Entry Point). Fix that by probing on LEP.
Objdump:
00000000100005f0 <doit>:
100005f0: 02 10 40 3c lis r2,4098
100005f4: 00 7f 42 38 addi r2,r2,32512
100005f8: a6 02 08 7c mflr r0
100005fc: 10 00 01 f8 std r0,16(r1)
10000600: f8 ff e1 fb std r31,-8(r1)
Before applying patch:
$ cat /sys/kernel/debug/tracing/uprobe_events
r:probe_uprobe_test/doit /home/ravi/uprobe_test:0x00000000000005f0
After applying patch:
$ cat /sys/kernel/debug/tracing/uprobe_events
r:probe_uprobe_test/doit /home/ravi/uprobe_test:0x00000000000005f8
This is not the case with kretprobes because the kernel itself finds LEP
and probes on it.
Signed-off-by: Ravi Bangoria <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Balbir Singh <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Naveen N. Rao <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/1475576865-6562-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add support for the "frontend" extra MSR on Skylake in the JSON
conversion.
Signed-off-by: Andi Kleen <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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The JSON event lists use a different encoding for fixed counters than
perf for instructions and cycles (ref-cycles is ok)
This lead to some common events like inst_retired.any or
cpu_clk_unhalted.thread not counting, when specified with their JSON
name.
Special case these events in the jevents conversion process. I prefer
to not touch the JSON files for this, as it's intended that standard
JSON files can be just dropped into the perf build without changes.
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Sukadev Bhattiprolu <[email protected]>
[Fix minor compile error]
Acked-by: Ingo Molnar <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Make alias matching the events parser case-insensitive. This is useful
with the JSON events. perf uses lower case events, but the CPU manuals
generally use upper case event names. The JSON files use lower case by
default too. But if we search case insensitively then users can
cut-n-paste the upper case event names.
So the following works:
% perf stat -e BR_INST_EXEC.TAKEN_INDIRECT_NEAR_CALL true
Performance counter stats for 'true':
305 BR_INST_EXEC.TAKEN_INDIRECT_NEAR_CALL
0.000492799 seconds time elapsed
Signed-off-by: Andi Kleen <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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This avoids the JSON PMU events parser having to know whether its
aliases are for perf stat or perf record.
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Sukadev Bhattiprolu <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Signed-off-by: Sukadev Bhattiprolu <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Add support to group the output of perf list by the Topic field in the
JSON file.
Example output:
% perf list
...
Cache:
l1d.replacement
[L1D data line replacements]
l1d_pend_miss.pending
[L1D miss oustandings duration in cycles]
l1d_pend_miss.pending_cycles
[Cycles with L1D load Misses outstanding]
l2_l1d_wb_rqsts.all
[Not rejected writebacks from L1D to L2 cache lines in any state]
l2_l1d_wb_rqsts.hit_e
[Not rejected writebacks from L1D to L2 cache lines in E state]
l2_l1d_wb_rqsts.hit_m
[Not rejected writebacks from L1D to L2 cache lines in M state]
...
Pipeline:
arith.fpu_div
[Divide operations executed]
arith.fpu_div_active
[Cycles when divider is busy executing divide operations]
baclears.any
[Counts the total number when the front end is resteered, mainly
when the BPU cannot provide a correct prediction and this is
corrected by other branch handling mechanisms at the front end]
br_inst_exec.all_branches
[Speculative and retired branches]
br_inst_exec.all_conditional
[Speculative and retired macro-conditional branches]
br_inst_exec.all_direct_jmp
[Speculative and retired macro-unconditional branches excluding
calls and indirects]
br_inst_exec.all_direct_near_call
[Speculative and retired direct near calls]
br_inst_exec.all_indirect_jump_non_call_ret
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Sukadev Bhattiprolu <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Previously we were dropping the useful longer descriptions that some
events have in the event list completely. This patch makes them appear with
perf list.
Old perf list:
baclears:
baclears.all
[Counts the number of baclears]
vs new:
perf list -v:
...
baclears:
baclears.all
[The BACLEARS event counts the number of times the front end is
resteered, mainly when the Branch Prediction Unit cannot provide
a correct prediction and this is corrected by the Branch Address
Calculator at the front end. The BACLEARS.ANY event counts the
number of baclears for any type of branch]
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Sukadev Bhattiprolu <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Madhavan Srinivasan <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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